NEW YORK (AP) — Lance Armstrong and the U.S. Anti-Doping Agency are exchanging written arguments in federal court about who has jurisdiction in the drug case against the seven-time Tour de France winner.

In papers submitted Friday to U.S. District Judge Sam Sparks, the cyclists’ attorneys attached a letter from a lawyer for USA Cycling. The lawyer says that the governing body for American cycling must accept the jurisdiction of the sport’s international federation and side against USADA in the case.

But USADA CEO Travis Tygart counters that “the World Anti-Doping Agency has already announced USADA has jurisdiction” in the doping conspiracy case. He says that’s under the rules adopted by both the International Cycling Union (UCI) and USADA.

USADA charged Armstrong in June with using performance-enhancing drugs throughout his career. Armstrong sued in federal court in Austin, Texas, to block the case, claiming USADA’s rules violate athletes’ constitutional right to a fair trial.

Advertisement

UCI then jumped in to say it should have jurisdiction in the case. Since then, most of the court fight has centered on that issue.